試題詳解

(1) Malonyl-CoA is the key repressor for fatty acid degradation due to the inhibition of fatty acid entry into mitochondria.

(2) Insulin signaling triggers the dephosphory lation of acetyl-CoA carboxylase to synthesize malonyl-CoA. (3) The reaction catalyzed by fatty acid synthase is the rate-limiting step in the biosynthesis of fatty acids.
(B) 2 and 3
(C) 1 and 3
(E) All of above are correct.
(A) 1 and 2
(D)2 only